Results 71 to 80 of about 247,599 (314)

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

open access: yesAdvanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang   +11 more
wiley   +1 more source

Characterization of an underground site in Northern Italy in view of low radioactivity measurements

open access: yes, 2004
A low background station for the measurement of low level radioactivity is under development in Northern Italy. The rock cover is about 300 m water equivalent.
GARLATI L.   +7 more
core   +1 more source

Calibration with MCNP of NaI detector for the determination of natural radioactivity levels in the field [PDF]

open access: yes, 2016
In view of assessing natural radioactivity with on-site quantitative gamma spectrometry, efficiency calibration of NaI(Tl) detectors is investigated.
Baré, Jonathan   +3 more
core   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

open access: yesAdvanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen   +19 more
wiley   +1 more source

An update on soil gas harvesting technique as a non-depleting source of 222Rn for a large volume calibration chamber for long-term exposure experiments

open access: yesRadiation Medicine and Protection
Objective: To demonstrate the versatility of the natural soil gas harvesting technique, coupled with a semi-dynamic injection algorithm, as an efficient and reliable source for continuous 222Rn delivery to a large-volume calibration chamber across ...
A.P. Vijith, N. Karunakara
doaj   +1 more source

Implementation of real-time source apportionment approaches using the ACSM–Xact–Aethalometer (AXA) setup with SoFi RT: the Athens case study [PDF]

open access: yesAtmospheric Measurement Techniques
Air pollution, particularly from particulate matter (PM), poses serious public health and environmental risks, especially in urban areas. To address this, accurate source apportionment (SA) of PM is essential for effective air quality management ...
M. I. Manousakas   +13 more
doaj   +1 more source

Bedrock radioactivity influences the rate and spectrum of mutation

open access: yeseLife, 2020
All organisms on Earth are exposed to low doses of natural radioactivity but some habitats are more radioactive than others. Yet, documenting the influence of natural radioactivity on the evolution of biodiversity is challenging.
Nathanaëlle Saclier   +9 more
doaj   +1 more source

Two-dimensional measurement of natural radioactivity of some Archean and Proterozoic rocks from South Africa

open access: yes, 2001
P(論文)The imaging plate is employed as a radiation sensor for obtaining two-dimensional radiation images of natural radioactivity. We used it to evaluate the autoradiography of several types of Archean and Proterozoic granitoids and ultramafic rocks from ...
Tsuchiya, Noriyoshi, Hareyama, Mihoko
core  

An Aerial Gamma Ray Survey of Springfields and the Ribble Estuary in September 1992 [PDF]

open access: yes, 1992
<p>A short aerial gamma ray survey was conducted in the vicinity of the Springfields site and Ribble Estuary from 1st-5th September 1992, to define existing background radiation levels, against which any future changes can be assessed.
Murphy, S.   +4 more
core  

Radioactivity concentrations and dose assessment for soil samples around Adana, Turkey

open access: yes, 2008
PubMedID: 18272269The concentrations of natural radionuclides in surface soils around Adana, Turkey were determined using gamma ray spectrometry with an HPGe detector.
Karahan G., Ozger G., Degerlier M.
core   +1 more source

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